鋼結(jié)構(gòu)水平對(duì)接二氧化碳?xì)怏w保護(hù)焊焊接參數(shù)

鋼結(jié)構(gòu)水平對(duì)接二氧化碳?xì)怏w保護(hù)焊焊接參數(shù)板厚(mm)焊絲直徑(mm)接頭形式(mm)裝配間隙(mm)層數(shù)焊接參數(shù)焊接電流(A)電弧電壓(V)焊接速度(m/min)焊絲外伸長(zhǎng)(mm)氣體流量(l/min)備注61.21.0～1.52270270.5512～1410～15d為焊絲直徑1.61.22.010～11.6～2.2121～2400～430190210280～30036～38192028～300.80~0.830.250.30~0.3716～221510d且≤4015~201516~1881.21.61.62.02.01～1.511.9～2.21.9～2.21.9～2.22222120～130130～140350～380400～430450350～360400～42026~2728~3035~3736~384134~3634~30.30~0.500.40~0.500.700.480.400.45~0.512~4016~2210d且≤4010d且≤4010d且≤402020~2516~181616~18101.21.22.01～1.522130～140280～300300～320300～320600～65020~3030~3337~3937~3937~380.30~0.500.25~0.300.70~0.820.70~0.820.60151510d且≤402020201221.21.62.00~1.51.8~2.2222310330400～430280～300323336～3820～30500.700.27～0.331516～2210d且≤402020～26.718～20d為焊絲直徑161.21.632120～140300～340300～34041043025～2733~3535~3734.5360.40～0.500.30~0.400.20~0.300.270.4515202020161.24140~160260~280270~290270~29024~2631~3334~3634~360.20~0.300.33~0.400.50~0.600.40~0.501520無(wú)鈍邊161.64400~430400~43036~3836~380.50~0.600.50~0.6016~2225201.24420~140300~340300~340300~340140~160260~280300~320300~32025~2733~3533~3533~3724~2631~3335~3735~370.40~0.500.30~0.400.30~0.400.12~0.150.25~0.300.450.40~0.500.4015152520201.62.02.50~2.142400~430440~46036~3830~320.35~0.450.27~0.3516~2220~3026.721.7222.0360~40038~400.4010d且≤4016~18251